Hi, In dbc file, We have APPS_JDBC_URL used to redirect JDBC connections to DB node or load balance between all avalailable DB nodes in case of RAC. Again at the end there is another entry "DB_HOST" and "DB_PORT" with DB host name / port number ? What is the purpose of these. -Thanks Vijay Cherukuri..
The EBS System Administrator's Guide describes the purpose of dbc files
The .dbc file is contained on the web/applications server and holds information used by the database for authentication. The web/application server passes the information from the .dbc file, as well as login information, to the database server to authenticate the user. The authentication process is handled by the standard applications security feature.